1.4 Study Guide Flashcards
How do you get from one metric unit to another?
By divinding or multiplying by the powers of 10.
What is are the measurements for mass and volume?
Mass = Grams.
Volume = Liters.
What are qualitative and quantitative observations?
Quantitative: The biased one. “He is tall,” is an example.
Qualitative: Numbers. Data. Unbiased.
What is average/mean?
All of the numbers in a data set added together, then divided by the amount of numbers added.
What is range and median?
Range: The lowest and highest number subtracted by each other in a data set.
Median: The middle number in a set of numbers.
How do you find volume?
For a box, it’s height times width times depth. If it’s an object in water, it’s where the meniscus is at.
What is meniscus?
The lowest part of the line for a water measurement.
The degree of hot or cold of an object is what?
Temperature.
What is mass?
The amount of matter in an object.
Describe temperature.
Degree of hotness = kinetic energy.
How do you measure length?
Meters.
What is the symbol for each of the units we went over, or that you should know?
Meter = m.
Gram = g.
Liter = L.
Seconds = S.
Celsius = {Degree symbol} C.
Micro = U-like symbol.
Nano = n.
Centimeters = cm.
Kilo = k.
Milli = m.
Centi = c.
Picameters = p.
Deci = d.
Describe precision and accuracy.
Precision is the quality or condition of something being accurate, and accuracy is the quality of something being correct or precise.
What is body temperature 98.4 degrees Fahrenheit in Celsius?
37 degrees Celsius.
Is 4 degrees Celsius the temperature of a hot or cool day?
Cool.
What is the temperature 4 degrees Celsius in Fahrenheit?
39.2 degrees Fahrenheit.
If your mass was 70 kilograms (kg) on Earth, what would it be on the moon?
70 kilograms. It doesn’t change.
What is a factor?
・ Fraction.
・Give relationship.
・”For every”.
How do the prefixes in the metric system relate to the base units?
The prefixes tell you how many of the base unit is being represented.
What is the different between mass and volume?
Mass is the amount of matter while volume is the amount of space in an object.
What is 53 nn in micro?
Divide, then move the decimal over 3 places.
0.053 micrometers.
What is 37.3 mm in m?
Divide, move the decimal to the left 3 places, and the answer is 0.0373 m.
What is 90.1 km in nm?
Multiply, then move the decimal over 12 places, and you get 90,100,000,000,000 nm.
How do you find how many decimal places your supposed to move, and which way?
By subtracting the powers of the prefixes, and then multiplying/diving to get your answer. Multiplying: move right and dividing: move left.
